Ants, wasps and bees are all included in the order of insects
“Hymenoptera” that includes some 60,000 species.
Wasps collect insect larvae and other forms of meat to feed their
larvae helping to control number of other insect pests, they
could also act as plant pollinators but it is thought that they would not be as
efficient as honey bees. They are however known as pests or a threat to health.
It is their ability to inflict painful stings that is the largest fear. Reactions to
stings can vary greatly from individual to individual but reactions can be
quite severe, resulting in large swelling and loss of mobility in limbs. Stings to
the neck or throat can result in the blocking of air passages.
Wasps are typically social insects constructing new nests each year, queens
which are larger than the worker over winter in buildings or old nests.
New nests can be built anywhere we have has nests built in lawn mowers,
sports bags left in a sheds and many other unusual situations.
Eggs are laid in the 1st tier of the nest built by the queen. This batch hatches
into larvae which construct and seal themselves into silken cocoons before
emerging as females, smaller than the queen and the males that will emerge
later in the season. These workers take on the responsibility of maintaining the
nest. Further tiers will be added as the population increases. In a season a nest
population can reach up to 20,000 or more. In the autumn new queens and males
are produced and after being fertilised by the males the queen sets off in search
of hibernation sites. The nest then dies out with the on set off winter.
CONTROL
The most common method of control is to inject insecticidal dust into the
entrance of the nest . Workers returning to the nest then take the dust into the
nest on their bodies dispersing it into the nest and the other occupants.